Carbon nanotube reinforced polylactide/basalt fiber composites containing aluminium hypophosphite: thermal degradation, flame retardancy and mechanical properties

RSC Advances ◽  
2015 ◽  
Vol 5 (128) ◽  
pp. 105869-105879 ◽  
Author(s):  
Wei Yang ◽  
Zhongjing Jia ◽  
Yani Chen ◽  
Yunran Zhang ◽  
Jingyu Si ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Carbon Nanotube ◽  
Thermal Degradation ◽  
Flame Retardancy ◽  
Basalt Fiber ◽  
Fiber Composites ◽  
Melt Blending ◽  
Excellent Thermal Stability ◽  
Blending Method

Modified carbon nanotube reinforced polylactide/basalt fiber composites containing aluminium hypophosphite were prepared via melt blending method. The composites showed excellent thermal stability, flame retardancy, and mechanical properties.

Carbon Nanotube Network in Polymer Nanocomposites: Rheology and Flammability

2014 ◽  
Vol 998-999 ◽  
pp. 27-30
Author(s):  
Hai Yun Ma ◽  
Jia Wei Liu ◽  
Wen Chuan Han ◽  
Li Ci Zhao
Keyword(s):  
Carbon Nanotube ◽  
Polymer Nanocomposites ◽  
Power Law ◽  
Network Structure ◽  
Flame Retardancy ◽  
Cone Calorimeter ◽  
Melt Blending ◽  
Blending Method ◽  
Carbon Nanotube Network ◽  
Rheological Percolation

ABS/MWNTs nanocomposites were prepared by using melt blending method. Cone calorimeter and ARES were employed to measure flammability and rheological properties. The flammability properties are strongly affected by the network structure. From the results of ARES tests, it is observed that when the MWNTs content is higher than 1 wt%, nanotubes network structure is formed and flame retardancy of the nanocomposites is significantly improved. The rheological percolation threshold, 0.72 wt%, was determined on the basis of a power law relation.

Flame Retardancy, Thermal Stability, and Mechanical Properties of Sisal Fiber/Organoclay/Polypropylene Composites

2011 ◽  
Vol 410 ◽  
pp. 47-50 ◽  
Author(s):  
Wichuda Chanprapanon ◽  
Nitinat Suppakarn ◽  
Kasama Jarukumjorn
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Maleic Anhydride ◽  
Flame Retardancy ◽  
Interfacial Adhesion ◽  
Sisal Fiber ◽  
Melt Blending ◽  
Polypropylene Composites ◽  
Pp Composites ◽  
Thermal Stability Of

Composites based on polypropylene (PP) and sisal fiber (SF) were prepared by melt blending. Sisal fiber content was 30 phr. Organoclay (OMMT; Cloisite®30B) (1-7 phr) was incorporated into the composites. In addition, maleic anhydride grafted polypropylene (MAPP) was used as a compatibilizer to enhance the interfacial adhesion between PP matrix and sisal fiber and also to improve the dispersion of the organoclay in PP matrix. The addition of OMMT had insignificantly affected mechanical properties of SF/PP composites. However, flame retardancy and thermal stability of SF/PP composites were improved dramatically with the presence of OMMT.

Synergistic effect of phosphorus–nitrogen and silicon-containing chain extenders on the mechanical properties, flame retardancy and thermal degradation behavior of waterborne polyurethane

RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72409-72422 ◽  
Author(s):  
Peikun Zhang ◽  
Haojun Fan ◽  
Saiqi Tian ◽  
Yi Chen ◽  
Jun Yan
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Thermal Degradation ◽  
Synergistic Effect ◽  
Flame Retardancy ◽  
Waterborne Polyurethane ◽  
Degradation Behavior ◽  
Thermal Degradation Behavior ◽  
Chain Extenders

A phosphorus–nitrogen–silicon containing waterborne polyurethane (FRWPU) was synthesized in order to improve flame retardancy without sacrificing thermal stability and mechanical properties.

Mechanical properties, flame retardancy, and thermal stability of basalt fiber reinforced polypropylene composites

2020 ◽  
Vol 41 (10) ◽  
pp. 4181-4191
Author(s):  
Shaoluo Wang ◽  
Jiabao Zhong ◽  
Yongqiang Gu ◽  
Guangyao Li ◽  
Junjia Cui
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Flame Retardancy ◽  
Basalt Fiber ◽  
Fiber Reinforced ◽  
Polypropylene Composites ◽  
Thermal Stability Of

scholarly journals A Geometry Effect of Carbon Nanomaterials on Flame Retardancy and Mechanical Properties of Ethylene-Vinyl Acetate/Magnesium Hydroxide Composites

Polymers ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1028 ◽  
Author(s):  
Zhi-Qi Liu ◽  
Zhi Li ◽  
Yun-Xian Yang ◽  
Yan-Ling Zhang ◽  
Xin Wen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Carbon Nanotube ◽  
Monitoring System ◽  
Vinyl Acetate ◽  
Magnesium Hydroxide ◽  
Flame Retardancy ◽  
Carbon Nanomaterials ◽  
Ethylene Vinyl Acetate ◽  
Temperature Monitoring

This study was aimed at investigating the effects of carbon nanomaterials with different geometries on improving the flame retardancy of magnesium hydroxide–filled ethylene-vinyl acetate (EM). The thermal stability and flame retardancy were studied by thermogravimetric analysis (TGA), limiting oxygen index (LOI), UL-94 test, and cone calorimeter test (CCT). The in situ temperature monitoring system and interrupted combustion offered direct evidence to link flame retardancy and composite structure. Results demonstrated that carbon nanomaterials enhanced the thermal stability and fire safety of EM. The geometry of carbon nanomaterials played a key role in synergistic flame retardancy of EM, with the flame-retardant order of carbon nanotube > nanoscale carbon black > graphene. Based on an online temperature monitoring system and interrupted combustion test, one-dimensional carbon nanotube was more inclined to form the network structure synergistically with magnesium hydroxide in ethylene-vinyl acetate, which facilitated the generation of more continuous char structure during combustion. In parallel, the mechanical property was characterized by a tensile test and dynamic mechanical analysis (DMA). The incorporation of carbon nanomaterials presented a limited effect on the mechanical properties of the EM system.

Expanded vermiculite-filled flexible polymer composites

2021 ◽  
pp. 009524432110290
Author(s):  
Mukaddes Sevval Cetin ◽  
Ozan Toprakci ◽  
Omer Suat Taskin ◽  
Abdullah Aksu ◽  
Hatice Aylin Karahan Toprakci
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Contact Angle ◽  
Polymer Composites ◽  
Flame Retardancy ◽  
Composite Films ◽  
Filler Concentration ◽  
High Shear ◽  
Flexible Polymer ◽  
Shear Mixing

This study focuses on the fabrication and characterization of vermiculite-filled flexible polymer composites. Exfoliated vermiculite was incorporated into triblock thermoplastic elastomer copolymer, styrene- b-(ethylene- co-butylene)- b-styrene (SEBS), at various levels from 1 to 15 wt% by a high shear mixer. The composite films were obtained by the combination of solvent casting and compression molding. The morphological, structural, thermal, and mechanical properties and contact angle of the composites were determined. Some micro-morphological differences were observed between the samples and the difference was assumed to be caused by high shear mixing and filler concentration. High shear mixing was found effective in terms of the detachment of vermiculite layers at all concentrations. However, at low filler loading, that behavior was more obvious. At 1 wt% filler concentration, mechanical properties increased that was probably caused by good filler-matrix interaction stemmed from smaller particle size. At higher vermiculite concentrations, fillers found to show agglomerations that led to a decrease in mechanical strength and strain at break. Elastic and secant modulus showed an increasing trend. Contact angle measurements were carried out to determine the oleophilic character of the samples. An increase in the vermiculite content resulted in higher oleophilic character and the lowest contact angle was obtained at 15 wt% VMT loading. In addition to these, thermal stability, thermal dimensional stability and flame retardancy were improved by the incorporation of VMT. 15 wt% vermiculite-filled sample showed the best performance in terms of thermal stability and flame retardancy.

Thermal Stability and Crystallization Behavior of PP/Organoclay Phase Change Composites

2013 ◽  
Vol 785-786 ◽  
pp. 123-126
Author(s):  
Ying Ye ◽  
Kun Yan Wang ◽  
Ge Chang ◽  
Qian Ying Jiang
Keyword(s):  
Thermal Stability ◽  
Phase Change ◽  
Crystallization Behavior ◽  
Melt Blending ◽  
X Ray Diffraction ◽  
Nucleation Agent ◽  
Scanning Calorimetry ◽  
Blending Method ◽  
Phase Change Composites ◽  
Change Material

Polypropylene/organoclay modified by dodecanol phase change material were prepared by melt blending method. The thermal stability and crystallization behavior was studied by thermogravimetry (TG), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). TG results indicated the window of processing of PP could be improved by adding small amount organoclay modified by dodecanol to the blend. DSC showed the organoclay modified by dodecanol affected the crystallization behavior of PP as heterogeneous nucleation agent. XRD results show that the organoclay modified by dodecanol does not change the crystal structure in the blends but only decrease the intensity of the diffraction peak.

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